Ext Direct comet/push from server support?

Hi, I'm new to the Sencha libraries and I'm looking for server push support. There were some comments in this forum regarding comet type support in the works from 2009, but I don't see any follow-up or specific support yet. Am I missing something. From what I can see, ext direct supports remoting of server side methods.

If no comet support has anyone used other frameworks with success and incorporated into ext library? cometd, hookbox?